Wilt wrote in post #16331261
Very interesting observation, David, the fact that apparently the 600EX-RT may have some characteristic which addresses the poor contact issues which cause full power ETTL when not desired. It makes you wonder what they did.
I use Metz flashes simply because I own several brands of TTL/ETTL capable cameras and therefore want to not be limited to use a Canon flash only on Canon body.
Very interesting observation, David, the fact that apparently the 600EX-RT may have some characteristic which addresses the poor contact issues which cause full power ETTL when not desired. It makes you wonder what they did.
I use Metz flashes simply because I own several brands of TTL/ETTL capable cameras and therefore want to not be limited to use a Canon flash only on Canon body.
Wilt,
I hadn't thought about that until this discussion.
But I don't recall every having a 600EX-RT loose ETTL connection with my 5DIIIs. It doesn't seem any tighter in the hot shoe.
It may also be that the ETTL algorithms are a bit different with the 600EX-RT and 2012 cameras. They definitely did something with the interface to enable the extended groups etc.
There probably is a gear head somewhere that will figure it all out. I'm just happy that everything works together without a hitch.
